/Engine/Source/Runtime/MeshDescription/Public/MeshDescriptionBase.h
Returns the polygons connected to this vertex instance
void GetVertexInstanceConnectedPolygons ( [FVertexInstanceID](API\Runtime\MeshDescription\FVertexInstanceID) VertexInstanceID, [TArray](API\Runtime\Core\Containers\TArray)< [FPolygonID](API\Runtime\MeshDescription\FPolygonID) > & OutConnectedPolygonIDs ) const